Home / 11,919.11-16,448.38-6,613.93

Finding the Fourth Proportional to 11,919.11, 16,448.38 and 6,613.93

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Solution

The fourth proportional to 11,919.11, 16,448.38 and 6,613.93 is: 9,127.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,919.11 : 16,448.38 = 6,613.93 : x
  2. Step 2: Convert to fraction form
    11,919.11/16,448.38 = 6,613.93/x
  3. Step 3: Cross multiply
    11,919.11x = 16,448.38 × 6,613.93
  4. Step 4: Simplify right side
    11,919.11x = 108,788,351.69
  5. Step 5: Solve for x
    x = 108,788,351.69/11,919.11
  6. Step 6: Final answer
    x = 9,127.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.